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Cisco IOS XE Software H.323 Message Validation Denial of Service Vulnerability

Information

Severity

Severity

High

Family

Family

CISCO

CVSSv2 Base

CVSSv2 Base

7.8

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

7 years ago

Modified

Modified

5 years ago

Summary

A vulnerability in the H.323 subsystem of Cisco IOS XE Software could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition on an affected device.

Insight

Insight

The vulnerability is due to a failure to properly validate certain fields in an H.323 protocol suite message. When processing the malicious message, the affected device may attempt to access an invalid memory region, resulting in a crash.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

See the referenced vendor advisory for a solution.

Common Vulnerabilities and Exposures (CVE)